.register {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.register > form > div > div {
    display: flex;
}

.register > form > div > div:nth-child(2) {
    height: 20px;
    font-size: 15px;
    color: red;
}

.register > form > div:last-child {
    display: flex;
    justify-content: center;
}

.register > form > div:last-child > div {
    margin: 20px;
}